from flask import current_app
from flask import g, jsonify
from flask import redirect
from flask import render_template
from flask import request
from flask import session

from info import constants, db
from info.models import Category, News
from info.modules.profile import profile_blu
from info.utils.common import user_login_data
from info.utils.image_storage import storage
from info.utils.response_code import RET


@profile_blu.route('/news_list')
@user_login_data
def user_news_list():
    """用户新闻列表"""
    # 获取参数
    page = request.args.get('p', 1)

    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    user = g.user
    news_list = []
    current_page = 1
    total_page = 1
    try:
        paginate = News.query.filter(News.user_id == user.id).paginate(page, constants.USER_COLLECTION_MAX_NEWS, False)
        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg='数据查询错误')

    news_dict_li = []
    for news in news_list:
        news_dict_li.append(news.to_review_dict())

    data = {
        "news_list": news_dict_li,
        "total_page": total_page,
        "current_page": current_page,
    }

    return render_template('news/user_news_list.html', data=data)


@profile_blu.route('/news_release', methods=["get", "post"])
@user_login_data
def news_release():
    """发布新闻"""

    if request.method == 'GET':
        # 加载新闻分类数据
        categories = []
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)

        category_dict_li = []
        for category in categories:
            category_dict_li.append(category.to_dict())

        # 移除“最新”这个分类
        category_dict_li.pop(0)

        return render_template('news/user_news_release.html', data={'categories': category_dict_li})

    # 1. 获取要提交的数据
    title = request.form.get('title')
    source = '个人发布'
    digest = request.form.get('digest')
    index_image = request.files.get('index_image')
    content = request.form.get('content')
    category_id = request.form.get('category_id')

    # 2. 校验参数
    if not all([title, source, digest, content, index_image, category_id]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数有误")

    try:
        category_id = int(category_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR, errmsg="参数有误")

    # 3. 获取图片，上传到七牛云
    try:
        index_image_data = index_image.read()
        key = storage(index_image_data)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR, errmsg='参数错误')

    # 建立新闻模型，赋值参数准备上传
    news = News()
    news.title = title
    news.digest = digest
    news.source = source
    news.content = content
    news.index_image_url = constants.QINIU_DOMIN_PREFIX + key
    news.category_id = category_id
    news.user_id = g.user.id

    # 1代表待审核状态
    news.status = 1

    try:
        db.session.add(news)
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg='数据保存失败')

    return jsonify(errno=RET.OK, errmsg='OK')


@profile_blu.route('/collection')
@user_login_data
def user_collection():
    # 获取参数
    page = request.args.get('p', 1)

    # 判断参数
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    # 查询用户指定页数的收藏的新闻
    user = g.user

    news_list = []
    total_page = 1
    current_page = 1
    try:
        paginate = user.collection_news.paginate(page, constants.USER_COLLECTION_MAX_NEWS, False)
        current_page = paginate.page
        total_page = paginate.pages
        news_list = paginate.items
    except Exception as e:
        current_app.logger.error(e)

    news_dict_li = []
    for news in news_list:
        news_dict_li.append(news.to_basic_dict())

    data = {
        'total_page': total_page,
        'current_page': current_page,
        'collections': news_dict_li
    }

    return render_template('news/user_collection.html', data=data)


@profile_blu.route('/pass_info', methods=['GET', 'POST'])
@user_login_data
def pass_info():
    """用户密码修改"""
    user = g.user

    if request.method == 'GET':
        return render_template('news/user_pass_info.html')

    # 1. 获取参数
    old_password = request.json.get("old_password")
    news_password = request.json.get("new_password")

    # 2. 校验参数
    if not all([old_password, news_password]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    # 3. 判断旧密码是否正确
    if not user.check_passowrd(old_password):
        return jsonify(errno=RET.PWDERR, errmsg='原密码错误')

    # 4. 设置新密码
    user.password = news_password

    return jsonify(errno=RET.OK, errmsg='保存成功')


@profile_blu.route('/pic_info', methods=['GET', 'POST'])
@user_login_data
def pic_info():
    """头像上传"""
    user = g.user
    if request.method == 'GET':
        return render_template('news/user_pic_info.html', data=user.to_dict())

    # 如果是POST表示修改头像
    # 1. 获取上传的图片
    try:
        avatar = request.files.get('avatar').read()
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR, errmsg='参数错误')

    # 2. 上传头像
    try:
        # 使用自已封装的storage方法去进行图片上传
        key = storage(avatar)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.THIRDERR, errmsg='上传头像失败')

    # 3. 保存头像地址
    user.avatar_url = key
    return jsonify(errno=RET.OK, errmsg='OK', data={"avatar_url": constants.QINIU_DOMIN_PREFIX + key})


@profile_blu.route('/base_info', methods=['GET', 'POST'])
@user_login_data
def base_info():
    """基本资料"""
    user = g.user

    # 不同的请求，做不同的事
    if request.method == 'GET':
        return render_template('news/user_base_info.html', data={'user_info': user.to_dict()})

    # 代表事修改用户数据
    # 1. 获取传入的参数
    nick_name = request.json.get('nick_name')
    signature = request.json.get('signature')
    gender = request.json.get('gender')

    # 2. 校验参数
    if not all([nick_name, signature, gender]):
        return jsonify(errno=RET.PARAMERR, errmsg='参数错误')
    if gender not in ('WOMAN', 'MAN'):
        return jsonify(errno=RET.PARAMERR, errmsg='参数错误')

    user.nick_name = nick_name
    user.signature = signature
    user.gender = gender

    # 将 session 中保存的数据进行实时更新
    session["nick_name"] = nick_name

    return jsonify(errno=RET.OK, errmsg='OK')


@profile_blu.route('/info')
@user_login_data
def user_info():
    user = g.user

    if not user:
        # 如果没登录，重定向到首页
        return redirect('/')

    data = {
        'user_info': user.to_dict()
    }
    return render_template('news/user.html', data=data)
